MIC502YM Motor Driver IC - Equivalent & Substitute Parts

Part Overview

The MIC502YM is a Brushless DC (BLDC) motor driver IC manufactured by Microchip Technology, designed for fan controller applications. Operating across a supply voltage range of 4V to 13.2V, this component functions as a speed controller with pre-driver low-side output configuration using parallel interface technology. The MIC502YM is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

MIC502YM

Microchip TechnologyIn Stock: 1444MIC502YM Datasheet

Current PartRFQ

TC646BEOA

Microchip TechnologyIn Stock: 2275TC646BEOA Datasheet

MFR RecommendedRFQ

TC648VOA

Microchip TechnologyIn Stock: 3154TC648VOA Datasheet

MFR RecommendedRFQ

TC648VOA713

Microchip TechnologyIn Stock: 2343TC648VOA713 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC502YM is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Motor type: Brushless DC (BLDC)
• Function: Speed controller
• Output configuration: Pre-driver low side
• Interface: Parallel
• Package: 8-SOIC surface mount
• Mounting type: Surface mount

Voltage Consideration: The MIC502YM operates at 4V to 13.2V supply voltage. The identified substitute parts (TC646BEOA, TC648VOA, TC648VOA713) operate at 3V to 5.5V supply voltage. This represents a narrower voltage range that does not encompass the full operating range of the original part. Selection of substitutes requires verification that the application's actual supply voltage falls within the 3V to 5.5V window.

Temperature Consideration: The MIC502YM operates from -40°C to 85°C. TC648VOA and TC648VOA713 operate from 0°C to 85°C, representing a narrower low-temperature range. TC646BEOA maintains the full -40°C to 85°C range.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and parallel interface configuration required for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

TC646BEOA is the preferred substitute when the application requires the full -40°C to 85°C operating temperature range of the original MIC502YM. This part maintains temperature specification parity with the obsolete component. However, the supply voltage range is limited to 3V to 5.5V, requiring confirmation that the application does not exceed 5.5V.

TC648VOA and TC648VOA713 are functionally equivalent alternatives with identical electrical specifications. Both operate at 3V to 5.5V supply voltage and 0°C to 85°C temperature range. The primary distinction between these two parts is packaging: TC648VOA is supplied in tube packaging, while TC648VOA713 is supplied in tape and reel format. Selection between these variants depends on production volume and assembly line requirements.

All three substitute parts are active products from Microchip Technology with current manufacturing status, ensuring long-term availability and supply chain stability compared to the obsolete MIC502YM.

Frequently Asked Questions (FAQ)

Q: Can TC646BEOA, TC648VOA, or TC648VOA713 be used as direct replacements for MIC502YM?

A: These parts share identical motor control function, output configuration, interface type, and package format. However, the supply voltage range differs. The MIC502YM operates at 4V to 13.2V, while all three substitutes operate at 3V to 5.5V. Direct replacement is possible only if the application's actual supply voltage remains within the 3V to 5.5V window.

Q: What is the difference between TC648VOA and TC648VOA713?

A: Both parts are electrically identical with the same electrical specifications and operating parameters. The difference is packaging format: TC648VOA is supplied in tube packaging, while TC648VOA713 is supplied in tape and reel format. Selection depends on production volume and assembly automation requirements.

Q: Does TC646BEOA offer any advantage over TC648VOA for temperature-sensitive applications?

A: TC646BEOA maintains the full -40°C to 85°C operating temperature range of the original MIC502YM. TC648VOA and TC648VOA713 operate from 0°C to 85°C, representing a narrower low-temperature specification. For applications requiring operation below 0°C, TC646BEOA is the appropriate selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. TC646BEOA, TC648VOA, and TC648VOA713 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the MIC502YM.

Q: What is the supply voltage limitation when using substitute parts?

A: All three substitute parts operate at 3V to 5.5V supply voltage. Applications requiring supply voltages above 5.5V cannot use these substitutes. The original MIC502YM supported operation up to 13.2V, which is not available in the active substitute options.